Tandem wing aeroplane



Feb. 7, 1933. A, LANZETTA 1,896,822

TANDEM WING AEROPLANE Filed June 9, 1931 I J29 17 Z0 fivenzon 7- man/50m? w Patented Feb. 7, 1933 UNITED STATES are ANTHONY ANZETTA, orln nwtx'onx, a. Y."

TANDEM wme 51 E;

" Application. filed June 9, 193'1Fseria'1' Nb; 5433389.

This invention relates to improvements in tandem wingaeroplanes and has particular reference to the different angles of incidence of their wings.

I 5 An object of the invention is to provide I an improved construction wherein the disposition is such as to secure a maximum lifting power from any given area of wing surface. Another object is to have wings spaced in close proximity to each other all having the rear edge partly or entirely arranged in the same horizontal line, with the front edge of each wing arranged obliquely at a higher angle of incidence than the former wing.

The above and other objects will appear more clearly from the following detailed description, when taken in connection with the accompanying drawing, which illustrates trate more or less conventionally the fuselage 5 and landing gear 6 of an aeroplane.

In the embodiment of the invention shown in Figures 1 to 3 the fuselage 5 sup or'ts the first wing 7, the second wing 8 an the additional wing 9 in dotted lines; the ailerons 5 conventionally shown at 16 are only at the rear edge extremities of the second or of any additional wing. The wings 7, 8 and 9 ex tend transversely of the fuselage 5 on op posite sides thereof. The first wing 7 has 0 its entire area in the same horizontal plane with the front edge 10 horizontally parallel to its rear edge 11 and also to'the. rear edges 13 and 15 of the second wing 8 and the additional wing 9. The front edge 12 of the second wing 8 is horizontally higher above the front edge 10 of wing 7, and'there on for any additional wing as the front edge 14 of the dotted wing. 9 is higher above the front edges 10 and 12 ofwings 7 and 8.

0 Figure 4 illustrates the same general prinated sli htly higher than the'corresponding ciple of arranged portions The entire'area of the first wing 17 is in thesame horizontal 7 plane extending transverselyof the fuselage 18 I on opposite 1 sides thereof; The second wing 19. has'its central portion 24 and its rear ed e20 arranged in the same horizontal line as the front and rear edges 22 and 23' of wing 17 and the front edge 21 of Wing 19 raised above the horizontal line of the-front l edge 22 of wing 17; but the end portions of said second wing 19 on opposite sides of the portion 24 are inclined upward so that each 5 end portion 25 and 26 willbe disposed diagonally relative to the wing 17 and in a plane above the same. a

What is claimedis:

1. In an aeroplane a plurality of "wings arranged in close proximity one. behind the other in such a manner that in the middle vertical longitudinal plane the rear edges of all the wings are in approximately the same I p horizontal line withthe front edgev of the first wing, whereas the front edges of all the wings following the first Wingare in consecu- I tive order higher than the front edge of each preceding wing, so as to give to-the different I wings in consecutive ordera higher angle of I a incidence. V a V p Y 2. In an aeroplane a plurality of wings as claimed inclaim '1, in combination with ailef rons on the outer'rear edges of'the last wing. 3. In an aeroplane a plurality of wings as claimed in claim 1, in which the lateral ends of each wing, except'th e first wing, are situ:

parts of the same wing, which are situated 1 in the longitudinal vertical axial plane of the aeroplane. 1 V 4. In an aeroplane a plurality of wings, as claimed in claim 1, in combination witha '90. fuselage of any suitable type, arranged trans versely at and fastened to the wings. I

5. In anaeroplane a plurality of wings, as

claimed '1 in combination with a boat of" any suitable type, arranged transversely at and 9 fastened to thesaid wings. 1 V y 6. Man aeroplane a plurality ofwings,'as claimed in claim 1, in combination with a float of any suitable type, arranged transversely at and fastened to the" said wings. 9

7. anaeroplane a plurality of wings, as claimed in claimsl, in combination with a T fuselage of any suitable type, arranged transversely at and fastened below thevsaidwings. 8. In an aeroplane a plurality of wings; as claimed in claim 1,' in combination with a fuselage of any suitable type arranged trans verselyat and fastened to {the centralzones' of the wings.

9. In an aeroplane a plurality of-wingaas I claimed in claim 1, in combination with a versely at and fastened to the Wings, and ailerons near the outer ends of any wings fuselageof any suitable type, arranged transfollowing the first wing.

Signe'dat New'Yorkfcity, in the county of Bronx and State of New York this Sthday" ofJune A. 13.1931.

; ANTHONY LANZE TA. 

